Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerPolyphenol Contents, Cytotoxicity and Antioxidant Activities of Some Selected Nigerian Vegetable Foods| Abstract

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Abstract

Polyphenol Contents, Cytotoxicity and Antioxidant Activities of Some Selected Nigerian Vegetable Foods

Author(s): Omale James, Okafor Polycarp Nnacheta and Omede Ameh

The present investigation was carried out to evaluate the relative antioxidant activity, cytotoxicity and some polyphenol contents in selected Nigerian vegetable foods. The flavouoid contents varied from 1.55± 4.23 to 17.300 ± 0.200% in the extracts. Total phenol contents were between 0.263 ± 0.00 to 1.328 ± 0.318% in the plant extracts. 2,2- Diphenyl-1- picrylhydrazyl (DPPH) radical scavenging effects of the extracts was determined spectrophotometrically. Rapid radical scavenging screening using thin layer chromatographic plate (TLC) was also performed. The highest radical scavenging effect was observed in C. esculenta leaf extract with IC50 = 180.20 >g/mL. This is comparable to the standards quercetin and ascorbic acid used. The higher amount of the polyphenolic compounds is attributable to more potent radical scavenging effects as demonstrated by C. esculenta leaf extract. The extracts possessed very low cytotoxicity to brine-shrimp, when compared with the reference standard (Potassium dichromate, LC50 = 180.142 >g/mL). The results obtained in the present study indicate that these vegetables can be potential sources of natural antioxidant agents and are relatively safe for the purposes utilized.


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